My Knowledge
blog and Updates
It's my personal blog and my post about what was my interested in. Not regularly. If you have any questions any discussion, I'm happy you get in touch with me, and try to answer as many as possible!
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How Compression Works on the Web: gzip, Brotli and Why Repetition Is Free
Blog Summary
Your 400 KB JavaScript bundle often travels as a fraction of that. Compression is why, and it works by spotting repetition. Here's how gzip and Brotli shrink text, why images don't benefit, and how to switch it on properly.
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What Happens After You Click "Pay": How a Payment Gateway Really Works
Blog Summary
One tap, two seconds, money moves. Behind the Pay button are tokens, authorizations, captures, webhooks and a lot of careful design. Here's the full trip, and what it means for the code you write.
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Character Sets, Collations and Sorting: Why Your Database Thinks "Sara" Equals "sara"
Blog Summary
A unique email that rejects a different capital letter, lists that sort differently in PHP and MySQL, Arabic searches that miss: all collation. Here's how character sets and collations work, and how to choose them on purpose.
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UUID vs ULID vs Auto-Increment: Choosing IDs That Don't Race, Leak or Slow You Down
Blog Summary
Auto-increment IDs leak your volume, random UUIDs can hurt insert performance, and neither is a security fix on its own. Here's how UUID, UUIDv7, ULID and plain integers really compare, and the hybrid that often wins.
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How Image Formats Work: JPEG, PNG, WebP and AVIF Explained
Blog Summary
The slowest thing on your page is often a photo saved as a 4000-pixel PNG. How JPEG, PNG, WebP and AVIF actually compress images, when to use each, and why resizing usually beats switching formats.
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JWT vs Sessions vs API Keys: Which One to Use, and When
Blog Summary
"We use JWT" is often the answer for the web app, the mobile app and the partner integration alike. Sessions, JWTs and API keys solve different problems; here's how to tell which one each caller needs.
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01. About Shiroz
Mohammed Shiroz
Hi, I'm Mohammed Shiroz, a software engineer and AI enthusiast from Sri Lanka who turns ideas into intelligent, real-world solutions. With over 9 years of hands-on experience, I currently lead real estate ERP development at Kate Group, a...
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